A stereo-controlled access to functionalized macrolactams via an aza-Claisen rearrangement
作者:Young-Ger Suh、Yong-Sil Lee、Seok-Ho Kim、Jae-Kyung Jung、Hwayoung Yun、Jaebong Jang、Nam-Jung Kim、Jong-Wha Jung
DOI:10.1039/c1ob06733h
日期:——
A novel and stereo-controlled method for the preparation of functionalized macrolactams was developed. The process involves stereoselective enol ether formation, followed by an azacyclic ring expansionvia an aza-Claisen rearrangement. Herewith, we describe a systematic investigation of an aza-Claisen rearrangement-induced ring expansion of azacycles prepared by appending E/Z-enol ethers to the medium-sized
开发了一种新型的和立体控制的方法来制备功能化的大内酰胺。该过程涉及立体选择性烯醇醚形成,接着是氮杂环膨胀经由氮杂Claisen重排。因此,我们描述了通过将E / Z-烯醇醚添加到中等大小的内酰胺中而制备的氮杂-克莱森重排诱导的氮杂环的环扩展的系统研究,以及立体化学结果。此外,该策略被成功地应用到fluvirucinine A的总合成1和3-外延-fluvirucinine阿1。该方法为分子内酰胺-醛醇缩合反应提供了一种有吸引力的替代方法,可用于修饰β-烷氧基-α-取代的基序。